The ABC of Computational Text Analysis

#1 Introduction +
Where is the digital revolution?

Alex Flückiger

Faculty of Humanities and Social Sciences
University of Lucerne

23 February 2024

Outline

  1. digital revolution or hype?
  2. about us
  3. goals of this course

AI: A non-standard Introduction

The World has changed, hasn’t it?

An Era of Big Data + AI

Group Discussion

What makes a computer looking intelligent?

. . .

AI is a moving target with respect to …

  • human capabilities
  • technological abilities

Transfer of Human Intelligence

from static machines to more flexible devices

  • mimicking intelligent behavior
    • reading + seeing + hearing
    • speaking + writing + drawing
  • a sense of contextual perception
  • many degrees of freedom

Seeing like a Human?

An image segmentation by Facebook’s Detectron2 (Wu et al. 2019)

Speaking like a Human?

Speech-to-Text (STT)

Recognizing speech regardless of language, accent, speed, noise etc.

Text-to-Speech Synthesis (TTS)

Personalizing voice given an audio sample of 3s

Generative and Multimodal AI

Outsmarting Humans?

Debunk some Myths of ChatGPT

ChatGPT …

  • is a brand rather than technology
  • is highly useful, although it understands little
  • generates fluent text, not necessarily truthful
  • is English-focused, only semi-multilingual
  • generate unreproducible outputs

Where does the smartness come from?

Number of words exposed (Timiryasov and Tastet 2023)

  • 100000000 a typical 13-year old kid
  • 4300000000 all Wikipedia
  • >1000000000000 current LLM models

LLMs amazing but …

… it is also a stochastic parrot. 🦜

(Bender et al. 2021)

Can you disenchant ChatGPT?

Experiment with ChatGPT

  • What works (surprisingly) well?
  • When does it fail?

ChatGPT is a tool…

… learn how to use it 👍

  • use ChatGPT as interactive partner
  • don’t trust; try, refine and develop understanding
  • speed up tasks, automation of project not feasible

These People do not exist

Generated Images by a Neural Network (Karras et al. 2020)

Generate more!

Trend towards Multimodality

Breakthrough by combining language processing and image generation with Muse (Chang et al. 2023)

Deepfakes? Yes, they are real!

Editing pictures with Muse using natural language (Chang et al. 2023)

Erase for … Instagram or Politics

Modify pictures with of your fingertip

Video is just the last barrier…

Synthesize any content with ever increasing quality

🎥

Artificial Intelligence

Subfields

  • Natural Language Processing (NLP)
  • Computer Vision (CV)
  • Robotics

How does Computer Intelligence work?

  • interchangeably (?) used concepts
    • Artificial Intelligence (AI), Machine Learning (ML), Deep Learning (DL)
  • learn patterns from lots of data
    • more recycling than genuine intelligence
    • theory agnostically
  • supervised training is the most popular
    • learn relation between input and output

AI is also Hype

AI = from humankind import solution

AI is different to Human Intelligence

Why this matters for
Social Science

Computational Social Science

data-driven research

Group Discussion

What kind of data is there?

What data is relevant for social science?

. . .

  • data as traces of social behaviour
    • tabular, text, image
  • datafication
    • sensors of smartphone, digital communication
  • much of human knowledge compiled as text

About the Mystery of Coding

coding is like…

  • cooking with recipes
  • superpowers

Women have coding powers too!

Where the actual Revolution is

Coding is a superpower …

  • flexible
  • reusable
  • reproducible
  • inspectable
  • collaborative

… to tackle complex problems on scale

About us

Personal Example

directed country mentions in UN speeches

Goals of this Course

What you learn

  • collect and curate data
  • computationally analyze, interpret, and visualize texts
    • command line + Python
  • digital literacy + scholarship
  • problem-solving capacity

Learnings from previous Courses

  • too much content, too little practice
  • programming can be overwhelming
  • learning by doing, doing by googling

Levels of Proficiency

  1. awareness of today’s computational potential
  2. analyzing existing datasets
  3. creating + analyzing new datasets
  4. applying advanced machine learning

How I teach

  • computational practises
  • critical perspective on technology
  • lecture-style introductions
  • hands-on coding sessions
  • discussions + experiments in groups

Provisional Schedule

Date Topic
23 February 2024 Introduction + Where is the digital revolution?
02 March 2024 Text as Data
09 March 2024 Setting up your Development Environment
16 March 2024 Introduction to the Command-line
23 March 2024 Basic NLP with Command-line
30 March 2024 (Zoom) Learning Regular Expressions
06 April 2024 (Zoom) Working with (your own) Data
13 April 2024 no lecture (Osterpause)
20 April 2024 Ethics and the Evolution of NLP
27 April 2024 Introduction to Python + VS Code
04 May 2024 Data Analysis of Swiss Media
11 May 2024 NLP with Python
18 May 2024 no lecture (Christi Himmelfahrt)
25 May 2024 NLP with Python II + Working Session
01 June 2024 Mini-Project Presentations + Discussion

🖥️ There are two digital lectures via Zoom.

TL;DR 🚀

You will be tech-savvy…

…yet no programmer applying fancy machine learning

Requirements

  • no technical skills required ✅
    • self-contained course
  • laptop (macOS, Win11, Linux) 💻
    • update system
    • free up at least 15GB storage
    • backup files

Grading ✍️

  • 3 exercises during semester
    • no grades (pass/fail)
  • mini-project with presentation
    • backup claims with numbers
    • work in teams
    • data of your interest
  • optional: writing a seminar paper
    • in cooperation with Prof. Sophie Mützel

Organization

  • seminar on Thursday from 2.15pm - 4.00pm
    • additionally, streaming via Zoom
  • course website KED2024 with slides + information
  • readings on OLAT
  • communication on OLAT Forum

TODO

prompt engineering + exercise

Who are you?

Please fill out this questionnaire

📝

Questions?

References

Bender, Emily M., Timnit Gebru, Angelina McMillan-Major, and Shmargaret Shmitchell. 2021. “On the Dangers of Stochastic Parrots: Can Language Models Be Too Big? 🦜.” In Proceedings of the 2021 ACM Conference on Fairness, Accountability, and Transparency, 610–23. Virtual Event Canada: ACM. https://doi.org/10.1145/3442188.3445922.
Chang, Huiwen, Han Zhang, Jarred Barber, A. J. Maschinot, Jose Lezama, Lu Jiang, Ming-Hsuan Yang, et al. 2023. “Muse: Text-To-Image Generation via Masked Generative Transformers.” January 2, 2023. https://doi.org/10.48550/arXiv.2301.00704.
Esser, Patrick, Johnathan Chiu, Parmida Atighehchian, Jonathan Granskog, and Anastasis Germanidis. 2023. “Structure and Content-Guided Video Synthesis with Diffusion Models.” February 6, 2023. https://doi.org/10.48550/arXiv.2302.03011.
Graham, Shawn, Ian Milligan, and Scott Weingart. 2015. Exploring Big Historical Data: The Historian’s Macroscope. Open Draft Version. Under contract with Imperial College Press. http://themacroscope.org.
Karras, Tero, Samuli Laine, Miika Aittala, Janne Hellsten, Jaakko Lehtinen, and Timo Aila. 2020. “Analyzing and Improving the Image Quality of StyleGAN.” March 23, 2020. https://doi.org/10.48550/arXiv.1912.04958.
Lazer, David, Alex Pentland, Lada Adamic, Sinan Aral, Albert-László Barabási, Devon Brewer, Nicholas Christakis, et al. 2009. “Computational Social Science.” Science 323 (5915): 721–23. https://doi.org/10.1126/science.1167742.
Lundberg, Ian, Jennie E. Brand, and Nanum Jeon. 2022. “Researcher Reasoning Meets Computational Capacity: Machine Learning for Social Science.” Social Science Research 108 (November): 102807. https://doi.org/10.1016/j.ssresearch.2022.102807.
Plüss, Michel, Lukas Neukom, Christian Scheller, and Manfred Vogel. 2021. “Swiss Parliaments Corpus, an Automatically Aligned Swiss German Speech to Standard German Text Corpus.” June 9, 2021. https://doi.org/10.48550/arXiv.2010.02810.
Radford, Alec, Jong Wook Kim, Tao Xu, Greg Brockman, Christine McLeavey, and Ilya Sutskever. 2022. “Robust Speech Recognition via Large-Scale Weak Supervision.” December 6, 2022. https://doi.org/10.48550/arXiv.2212.04356.
Salganik, Matthew J. 2017. Bit by Bit: Social Research in the Digital Age. Illustrated edition. Princeton: Princeton University Press. https://www.bitbybitbook.com.
Timiryasov, Inar, and Jean-Loup Tastet. 2023. “Baby Llama: Knowledge Distillation from an Ensemble of Teachers Trained on a Small Dataset with No Performance Penalty.” In Proceedings of the BabyLM Challenge at the 27th Conference on Computational Natural Language Learning, 251–61. Singapore: Association for Computational Linguistics. https://doi.org/10.18653/v1/2023.conll-babylm.24.
Wang, Chengyi, Sanyuan Chen, Yu Wu, Ziqiang Zhang, Long Zhou, Shujie Liu, Zhuo Chen, et al. 2023. “Neural Codec Language Models Are Zero-Shot Text to Speech Synthesizers.” January 5, 2023. https://doi.org/10.48550/arXiv.2301.02111.
Wu, Yuxin, Alexander Kirillov, Francisco Massa, Wan-Yen Lo, and Ross Girshick. 2019. “Detectron2.” Meta Research. https://github.com/facebookresearch/detectron2.